JPH0245028Y2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, coloring books have been known in which pigments are applied in advance partially inside the picture, in the margins outside the picture, or at other predetermined positions. Many of the pigments used in this coloring book are water-soluble, and the coloring book is completed by soaking a brush in water, dissolving the water-soluble pigments, and filling the coloring book with color. be done.

However, in order to complete such a coloring picture, a brush or the like is conventionally used, and since the brush is expensive, it is inconvenient when used as an inexpensive gift item. Furthermore, if the coloring book is distributed to customers as a premium without the brush because the brush is expensive, the person who received the coloring book as a present will have to arrange for the brush, which is extremely inconvenient. If a customer did not have a brush in hand, the coloring books they had painstakingly distributed would end up being thrown away unfinished.

In view of these points, the present invention aims to provide a brush for use in the coloring book at a low cost.

That is, in the present invention, a water-repellent resin layer is formed on one side of an elongated cardboard, the other side is a hydrophilic paper surface, and a center line along the length of one side of the cardboard is formed. A paper brush is provided in which a half-cut groove is formed in the paper brush, and the paper brush is folded along the center line so that the hydrophilic paper surface faces inside.

FIG. 1 is an explanatory developed plan view of the paper brush of the present invention, and FIG. 2 is an explanatory cross-sectional view taken along line AB in FIG. 1.

As can be understood from FIGS. 1 and 2, the paper brush of the present invention has a water-repellent resin layer 2 formed on one side of an elongated cardboard 1 by coating or film lamination or other appropriate means, and the other side is coated with a water-repellent resin layer 2. It has a hydrophilic paper surface 4. Further, on one side of the cardboard 1, a half-cut groove 3 is formed along the center line along the length direction. The half-cut grooves 3 may be formed either on the surface on which the water-repellent resin layer 2 is formed or on the opposite surface, as shown in FIG.

The paper brush of the present invention has a hydrophilic paper surface 4 as shown in Figure 3.
It is folded along the center line so that the edges are on the inside.

Examples of the cardboard include 26Kg/46 Kent paper, but are not limited thereto. Further, as the water-repellent resin layer, known resins such as polypropylene resin are appropriately selected and used.

As shown in FIG. 1, it is preferable that the paper brush of the present invention has at least one end formed such that the center line portion is a pointed end. By doing so, when folded as shown in Fig. 3, the tip will be at an acute angle, making it easier to color the details of the coloring book.

The paper brush of this invention is used by being folded as shown in Figure 3, and since the inside is hydrophilic, water is retained inside by capillary action when the tip of the paper brush is immersed in water. Moreover, the water retention performance is further improved by the half-opening groove. On the other hand, the water-repellent resin layer can prevent the cardboard from swelling and softening due to water. In this manner, the coloring book is colored while retaining water while dissolving the pigments of the paints applied in advance to the coloring book.

There are various colors of paint, and if you want to paint the first color and then paint the other colors, you can use it like a new brush by cutting off the tip of the paper brush with scissors, etc.1
It also becomes easy to prevent color mixing between the pigment of a different color and the pigment of a second or subsequent color.

As described above, the present invention provides a paper brush, which can be produced at a very low cost, and can be produced in large quantities at the same time, very simply, by punching and half-blanking. Therefore, it is suitable for premium use. Furthermore, since the paper brush of the present invention is thin and flat in either the folded or unfolded state, it is convenient without being bulky even when distributed or sold as a set with the above-mentioned coloring book. .

It goes without saying that the paper brush of the present invention may be sold separately.

[Brief explanation of the drawing]

Figure 1 is a developed plan view of the paper brush of the present invention, Figure 2
The figure is an explanatory cross-sectional view taken along the line A-B in Figure 1.
The figures each show a perspective view of the paper brush of the present invention. 1...Thick paperboard, 2...Water-repellent resin layer, 3...Half-cut groove, 4...Hydrophilic paper surface.

Claims (1)

[Claims for Utility Model Registration] (1) A water-repellent resin layer is formed on one side of an elongated cardboard, and the other side is a hydrophilic paper surface, and the length of one side of the cardboard A paper brush having a half-cut groove formed along a center line along the direction, and folded along the center line so that the hydrophilic paper surface faces inside. (2) The paper pen according to claim 1, wherein at least one end of the thick paperboard is formed such that the center line portion becomes a tip.